aherbert commented on a change in pull request #27: Murmur3fix
URL: https://github.com/apache/commons-codec/pull/27#discussion_r341853959
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File path: src/main/java/org/apache/commons/codec/digest/MurmurHash3.java
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@@ -407,22 +415,25 @@ public static long hash64(final byte[] data, final int
offset, final int length,
* @return - 128 bit hash (2 longs)
*/
public static long[] hash128(final byte[] data, final int offset, final
int length, final int seed) {
- long h1 = seed;
- long h2 = seed;
+ // The original algorithm does have a 32 bit unsigned seed.
+ // We have to mask to match the behavior of the unsigned types and
prevent sign extension.
+ long h1 = seed & UINT_MASK;
Review comment:
Indentation issues.
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